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@ohnuma の解説一覧

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1
abc452_fInterval Inversion Count
2026/04/05 11:28:48

調和級数 + 累積和

1
abc356_eMax/Min
2026/03/14 20:48:55

ceil

1
abc447_aSeats 2
2026/03/01 21:04:45

解説

1
abc446_aHandmaid
2026/02/26 09:59:12

abc129_e

0
abc129_eSum Equals Xor
2026/09/28 21:07:32

abc477_f

0
abc477_fCount Cells in a Window
2026/09/27 22:02:29

abc477_e

0
abc477_eWheel Distance
2026/09/27 21:41:06

abc477_d

0
abc477_dMasking Tape
2026/09/27 12:14:56

abc477_c

0
abc477_cRange Search Query
2026/09/27 11:59:47

abc477_b

0
abc477_bStanding Outliers
2026/09/27 11:53:21

abc477_a

0
abc477_aTraffic Light
2026/09/27 11:47:37

abc445_f

0
abc445_fExactly K Steps 2
2026/09/26 20:10:21

abc446_e

0
abc446_eMultiple-Free Sequences
2026/09/25 23:19:19

abc476_f

0
abc476_fChebyshev Cafe
2026/09/25 12:31:02

abc463_e

0
abc463_eRoads and Gates
2026/09/05 06:07:52

abc468_e

0
abc468_eSum of Average
2026/09/01 22:20:04

abc469_e

0
abc469_ePro Exam Eligibility
2026/08/31 20:45:43

abc469_f

0
abc469_fGCD Maximum Spanning Tree
2026/08/31 18:24:33

abc469_d

0
abc469_dThe Big Two
2026/08/31 17:00:34

abc470_f

0
abc470_fGoogol Swaps
2026/08/31 00:07:46

abc471_f

0
abc471_fConcat (maximize)
2026/08/30 12:16:10

abc473_e

0
abc473_eK-Divisible Subarrays
2026/08/30 11:47:42

abc473_F

0
abc473_fA/AB Insertion
2026/08/30 11:32:54

abc471_e

0
abc471_eSum of Square of Sum
2026/08/16 12:19:17

abc471_d

0
abc471_dChargers
2026/08/16 12:13:25

abc471_c

0
abc471_cCookies and Greedy Takahashi
2026/08/16 12:08:55

abc471_b

0
abc471_bSurvey Tabulation
2026/08/16 12:05:55

abc471_a

0
abc471_aNine or Nein
2026/08/16 12:05:03

E問題

0
abc466_eRange Flip
2026/07/12 10:10:48

D問題

0
abc466_dPlacing Rooks
2026/07/12 10:10:14

C問題

0
abc466_cCount Close Pairs
2026/07/12 10:09:51

B問題

0
abc466_bRepresentative Balls
2026/07/12 10:09:26

解説

0
abc466_aCompromise
2026/07/12 10:08:54

調和級数

0
abc452_eYou WILL Like Sigma Problem
2026/04/05 11:04:20

解説

0
abc452_dNo-Subsequence Substring
2026/04/05 10:11:10

解説

0
abc452_cFishbones
2026/04/05 09:40:16

解説

0
abc452_bDraw Frame
2026/04/05 09:16:24

回答

0
abc452_aGothec
2026/04/05 09:09:48

三分探索

0
abc426_eClosest Moment
2026/03/28 18:56:14

解説

0
abc423_eSum of Subarrays
2026/03/27 08:46:37

ordered set

0
abc391_fK-th Largest Triplet
2026/03/22 12:21:26

dp

0
abc390_eVitamin Balance
2026/03/21 20:06:04

ベル数

0
abc390_dStone XOR
2026/03/21 19:36:49

解説

0
abc378_eMod Sigma Problem
2026/03/19 08:36:27

解説

0
abc375_e3 Team Division
2026/03/18 08:38:32

解説

0
abc369_eSightseeing Tour
2026/03/18 07:37:49

zobrist hash

0
abc367_fRearrange Query
2026/03/17 08:55:09

ダブリング

0
abc367_ePermute K times
2026/03/16 23:43:55

dp

0
abc364_eMaximum Glutton
2026/03/16 23:13:05

木の直径を考える

0
abc361_eTree and Hamilton Path 2
2026/03/16 22:13:35

解説

0
abc359_eWater Tank
2026/03/16 21:39:18

解説

0
abc359_dAvoid K Palindrome
2026/03/16 08:48:31

解説

0
abc358_eAlphabet Tiles
2026/03/15 23:02:44

解説

0
abc357_eReachability in Functional Graph
2026/03/15 22:50:43

解説

0
abc343_fSecond Largest Query
2026/03/13 08:37:45

解説

0
abc341_eAlternating String
2026/03/12 23:48:21

桁dp

0
abc336_eDigit Sum Divisible
2026/03/11 22:02:04

解説

0
abc329_eStamp
2026/03/11 21:43:39

解説

0
abc328_fGood Set Query
2026/03/11 08:49:55

期待値dp

0
abc326_eRevenge of "The Salary of AtCoder Inc."
2026/03/11 08:43:24

dag上のdp

0
abc335_eNon-Decreasing Colorful Path
2026/03/10 23:23:53

セグ木2個

0
abc351_fDouble Sum
2026/03/10 22:19:18

解説

0
abc418_eTrapezium
2026/03/08 22:32:11

木dp

0
abc447_fCentipede Graph
2026/03/01 22:21:33

逆から考える

0
abc447_eDivide Graph
2026/03/01 22:00:55

真ん中を固定して考える

0
abc447_dTake ABC 2
2026/03/01 21:47:22

解説

0
abc447_cInsert and Erase A
2026/03/01 21:38:41

map

0
abc447_bmpp
2026/03/01 21:06:30

解説

0
abc407_eMost Valuable Parentheses
2026/02/26 09:56:40